MTB-82

The MTB-82 (Russian: МТБ-82) is the designation of a type of Soviet trolleybus. The rigid buses were initially developed and manufactured by the Savod No. 82 (Завод №82, Plant No. 82) armaments plant in the Moscow suburb of Tushino. In 1951, series production was transferred to the civilian company Sawod imeni Urizkogo (abbreviated to SiU), which was located in the Saratov Oblast, RSFSR. This company currently operates under the name Trolza.

The series designation is composed of the abbreviation for Moscow Trolley Bus and the number of the developer company. The employees of the transport company have colloquially designated these trolleys "Emtebeschka," a diminutive of the abbreviation in Russian.

The Sawod No. 82 designed the model in 1945 to meet the needs of Soviet transport companies for trolleybuses. In terms of contemporary vehicle construction, the MTB-82 featured conservative or partially outdated technical solutions. These included the heavy load-bearing floor frame with removable body and the non-automatic contactor control. The series was considered uncomfortable for drivers and passengers. Conversely, the vehicles were constructed in a simple, robust, and durable manner and were reliable if the requisite maintenance was carried out correctly. These characteristics, in conjunction with the vehicle's widespread use and long service life, contributed to the design's economic success. Following the resumption of armaments production at Plant No. 82 in 1951, the SiU continued to manufacture the MTB-82. In 1960, this manufacturer was able to complete work on the successor model, the SiU-5. Subsequently, production of the MTB-82 was terminated in the same year.

In total, both manufacturers constructed approximately 5,000 MTB-82s, with 3,746 units designated as SiUs. These vehicles were deployed in numerous Soviet cities and exported to select Central and Eastern European countries. Approximately ten years after the conclusion of series production of the MTB-82, the number of operational trolleybuses of this type began to decline rapidly. The delivery of numerous SiU-5s, and later SiU-9s and Škoda 9Trs, rendered the maintenance of the obsolete vehicles superfluous, resulting in the MTB-82s being phased out of service by 1975. A few examples were preserved as museum vehicles or technical monuments.

MTB-82
Quantity:	about 5000
Manufacturer:	Plant No. 82 / Sawod imeni Urizkogo
Years of construction:	1945 to 1960 or 1961
Years of use:	1945 to 1975
Length:	10.365 mm
Width:	2615 mm
Height (with lowered rods):	3670 mm
Wheelbase:	6000 mm
Ground clearance:	170 mm
Turning circle:	12,7 m
Empty mass:	9,25 t
Maximum speed:	55 km/h
Start-up acceleration:	1,1 m/s²
Motor type:	DK-201 / DK-202B
Power system:	600 Volt Direct current
Hourly performance:	74, 80 or 86 kW
Control:	Contactor control
Brake:	Resistance brake, direct-acting air brake, hand parking brake
Seats:	38
Standing places:	48 (eight passengers per m²)